The LDK220 is a low drop voltage regulator, which provides a maximum output current of 200 mA from an input voltage in the range of 2.5 V to 13.2 V, with a typical dropout voltage of 100 mV. A ceramic capacitor stabilizes it on the output. The very low drop voltage, low quiescent current and low noise make it suitable for battery-powered applications. The enable logic control function puts the LDK220 in shutdown mode allowing a total current consumption lower than 1 μA. The device also includes a short-circuit constant current limiting and thermal protection.

Input voltage from 2.5 to 13.2 V
Very low-dropout voltage (100 mV typ. @ 100 mA load)
Low quiescent current (typ. 55 μA, 1 μA in off mode)
Low noise
Output voltage tolerance: ± 2.0% @ 25 °C
200 mA guaranteed output current
Wide range of output voltages available on request: fixed from 1.2 V to 12 V with 100 mV step and adjustable
Logic-controlled electronic shutdown
Compatible with ceramic capacitor COUT = 1 μF
Internal current and thermal limit
Available in SOT23-5L, SOT323-5L, SOT-89 and DFN6-1.2x1.3 packages
Temperature range: -40 °C to 125 °C
Applications
Battery-powered equipment
TV
Set-top box
PC and laptop
Industrial